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    <title>obsvss</title>
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    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>obsvss</b> -  observable part</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>[Ao,Bo,Co]=obsvss(A,B,C [,tol])  </tt>
      </dd>
      <dd>
        <tt>[slo]=obsvss(sl [,tol])  </tt>
      </dd>
    </dl>
    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>A,B,C,Ao,Bo,Co</b>
        </tt>: real matrices</li>
      <li>
        <tt>
          <b>sl,slo</b>
        </tt>: <tt>
          <b>syslin</b>
        </tt> lists</li>
      <li>
        <tt>
          <b>tol</b>
        </tt>: real (threshold) (default value <tt>
          <b>100*%eps</b>
        </tt>)</li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
      <tt>
        <b>slo=(Ao,Bo,Co)</b>
      </tt> is the observable part of linear system <tt>
        <b>sl=(A,B,C)</b>
      </tt> (<tt>
        <b>syslin</b>
      </tt> list)</p>
    <p>
      <tt>
        <b>tol</b>
      </tt>  threshold to test controllability (see <tt>
        <b>contr</b>
      </tt>); 
    default value = <tt>
        <b>100*%eps</b>
      </tt>
    </p>
    <h3>
      <font color="blue">See Also</font>
    </h3>
    <p>
      <a href="contr.htm">
        <tt>
          <b>contr</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="contrss.htm">
        <tt>
          <b>contrss</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="obsv_mat.htm">
        <tt>
          <b>obsv_mat</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="obs_gram.htm">
        <tt>
          <b>obs_gram</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
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